﻿//  This file is part of YamlDotNet - A .NET library for YAML.
//  Copyright (c) Antoine Aubry and contributors

//  Permission is hereby granted, free of charge, to any person obtaining a copy of
//  this software and associated documentation files (the "Software"), to deal in
//  the Software without restriction, including without limitation the rights to
//  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
//  of the Software, and to permit persons to whom the Software is furnished to do
//  so, subject to the following conditions:

//  The above copyright notice and this permission notice shall be included in all
//  copies or substantial portions of the Software.

//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//  SOFTWARE.

using System;

namespace YamlDotNet.Core
{
    [Serializable]
    internal class Cursor
    {
        public int Index { get; set; }
        public int Line { get; set; }
        public int LineOffset { get; set; }

        public Cursor()
        {
            Line = 1;
        }

        public Cursor(Cursor cursor)
        {
            Index = cursor.Index;
            Line = cursor.Line;
            LineOffset = cursor.LineOffset;
        }

        public Mark Mark()
        {
            return new Mark(Index, Line, LineOffset + 1);
        }

        public void Skip()
        {
            Index++;
            LineOffset++;
        }

        public void SkipLineByOffset(int offset)
        {
            Index += offset;
            Line++;
            LineOffset = 0;
        }

        public void ForceSkipLineAfterNonBreak()
        {
            if (LineOffset != 0)
            {
                Line++;
                LineOffset = 0;
            }
        }
    }
}
